en Midwifery Orginal research <div style="text-align: justify;"><span style="font-family:Times New Roman;"><span style="line-height:2;"><span style="font-size:14px;"><span style="color:#2980b9;"><b>Background</b>:</span> In addition to physical changes, pregnancy is associated with many psychological and social changes, which can have adverse effects on the consequences of pregnancy and even the future of the infant.<br> <span style="color:#2980b9;"><b>Objectives</b>:</span> This study aimed to determine the effect of group counseling using a positive psychological approach on pregnant women&#39;s psychological capital.<br> <span style="color:#2980b9;"><b>&nbsp;Methods</b>:</span> This randomized clinical trial was performed on 56 pregnant mothers visiting Zanjan health centers. <span style="color:black">Positive psychological interventions were performed twice a week for 8 sessions of 60 minutes</span>. Data collection was performed using McGee&#39;s Psychological Capital Questionnaire in three stages: before, after, and six weeks after the intervention. and the data were analyzed using chi-square, independent t-test, Mann-Whitney, Friedman, and variance analysis with repeated measurements.<br> <span style="color:#2980b9;"><b>Results</b>:</span><span style="color:#2f5597"> </span>The mean scores of psychological capital and its subscales (self-efficacy, resilience, hope, and optimism) at post-test in the intervention group were significantly higher than the control group (P <0.05). The mean difference in scores six weeks after the intervention was significant in the Psychological Capital variable <span style="color:black">(P =0.049)</span>. However, no significant difference was observed in any of its subscales (P >0.05).<br> <span style="color:#2980b9;"><b>Conclusion</b>: </span>Positive group counseling can improve psychological capital in pregnant women. Therefore, it is recommended that such interventions to promote mental health during pregnancy be considered by health policymakers.<span style="line-height:200%"></span></span></span></span></div> Group Counseling, Positive Psychology, Psychological Capital, Pregnant Women 71 79 http://nmcjournal.zums.ac.ir/browse.php?a_code=A-10-170-3&slc_lang=en&sid=1 Mansureh Mostafaei Mostafai554@yahoo.com 100319475328460013458 100319475328460013458 No Mashhad Army Hospital, Mashhad, Iran. Mojghan Mokhtari Zanjani mokhtari@zums.ac.ir 100319475328460013459 100319475328460013459 No Department of Midwifery, School of Nursing and Midwifery, Zanjan University of Medical Sciences, Zanjan, Iran. Taraneh Emamghooli Khooshehchin khoosheh@zums.ac.ir 100319475328460013460 100319475328460013460 Yes Department of Midwifery, School of Nursing and Midwifery, Zanjan University of Medical Sciences, Zanjan, Iran.